(A) Zero
(B) 1
(C) Negative
(D) None of these
Category: Statistics Mcqs
Explore a comprehensive collection of Statistics Multiple Choice Questions (MCQs) designed to test your knowledge and enhance your understanding. Our curated database covers a wide range of statistical concepts, providing a valuable resource for students, educators, and professionals. Practice Statistics MCQs to sharpen your skills and excel in your studies or career. Start mastering statistics today!
If mean is 25 and standard deviation is 5 then C.V (Coefficient of variation) is__.
(A) 100%
(B) 25%
(C) 20%
(D) None of these
The measure of Dispersion can never be__.
(A) Positive
(B) Negative
(C) 0
(D) 1
The standard deviation is always __ than mean deviation.
(A) Greater
(B) Less
(C) Equal
(D) None
The variance of 5 numbers is 10. If each number is divided by 2, then the variance of new numbers is__.
(A) 20
(B) 70
(C) 2.5
(D) 5.5
Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be__.
(A) 50
(B) 70
(C) 50/20
(D) 50-20 = 30
Var(2X+3) is__.
(A) 5 Var(X)
(B) 4 Var(X)
(C) 4 Var(X)+3
(D) 5 Var(X)+3
The variance of a constant is__.
(A) Zero
(B) Constant
(C) a
(D) None